That is done using ultrasound, which is generated by a box called a pulse-generator that is similar in size to a pacemaker box, but is inserted lower down in the chest (see illustration).
The programmed working voltage of capture control DDD pacemaker is significantly lower than that of the common DDD pacemaker.
夺获控制型双腔起搏器的常规工作电压明显低于普通双腔起搏器。
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Pacemaker syndrome. This uncommon condition occurs when a pacemaker throws off the careful coordination between the beating of the upper and lower chambers of the heart.